Accupro 12182735 Corner Radius End Mill 1/8 in 4 Flute Altin

Product Description

The ACCUPRO 12182735 is a solid carbide corner radius end mill designed for precision milling operations in metalworking and machining applications. Built from micrograin solid carbide and coated with AlTiN (Aluminum Titanium Nitride), this tool delivers high heat resistance and wear performance in demanding cutting environments. It features a 1/8 inch cutting diameter, a 1/4 inch length of cut, and a 0.045 inch corner radius that reduces stress concentration at the cutting edge. With four flutes in a right-hand spiral configuration and a 40-degree helix angle, this end mill is suited for finishing and semi-finishing passes in ferrous and hardened materials. It is a centercutting, single-end design with a 1/8 inch shank diameter and 1-1/2 inch overall length.

This end mill is intended for use in CNC machining centers and manual mills where tight tolerances and consistent corner geometry are required. The stub-length flute configuration provides rigidity during side milling, slotting, and profiling operations on steel, stainless steel, cast iron, and similar hard materials. The AlTiN coating makes it well-suited for dry or near-dry cutting conditions at elevated spindle speeds. Machinists and tool-and-die professionals working in job shops, production machining, and mold and die applications will find this tool appropriate for small-diameter finish work.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention
• AlTiN coating provides heat and oxidation resistance for dry cutting
• 0.045 inch corner radius reduces edge chipping and extends tool life
• 4-flute, right-hand spiral design optimized for finishing operations
• 40-degree helix angle for smooth chip evacuation and reduced cutting forces
• Centercutting capability allows plunge entry into workpiece material

Compatibility

Designed as a standard shank end mill compatible with 1/8 inch collets and toolholders used in CNC machining centers, vertical mills, and die grinders configured for precision carbide tooling.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked-out state per applicable machine safety procedures. Ensure the collet and toolholder are clean and free of chips or debris before seating the shank. Verify runout with a dial indicator after clamping, as shank diameter tolerance on this tool is -0.0001 to -0.0004 inch. Do not exceed the tool manufacturer's recommended speeds and feeds for the coating and material combination.